1. Laboratory for Soft Machines & ElectronicsSchool of PackagingMichigan State University East Lansing MI 48824 USA
2. Ford Energy Storage Research GroupFord Motor Company Dearborn MI 48121 USA
3. Departments of Mechanical Engineering and Materials Science and EngineeringUniversity of Washington Seattle WA 98105 USA
4. Washington Clean Energy TestbedsClean Energy Institute Seattle WA 98105 USA
5. Departments of Mechanical Engineering, Electrical and Computer EngineeringMichigan State University East Lansing MI 48824 USA